package edu.zju.gis.dbfg.fileserver.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.TaskExecutor;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.ThreadPoolExecutor;

/**
 * @author Hu
 * @date 2019/6/24
 * 数据装载线程池
 **/
@Configuration
@EnableAsync
public class DataLoaderThreadPoolConfig {

//  private static final Logger logger = LoggerFactory.getLogger(DataLoaderThreadPoolConfig.class);

    // TODO 把线程池配置信息放到yml中
    @Bean("dataLoaderExecutor")
    public TaskExecutor dataLoaderExecutor() {
//    logger.info("Initial data loader executor pools");
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 配置核心线程数
        executor.setCorePoolSize(10);
        // 配置最大线程数
        executor.setMaxPoolSize(30);
        // 配置队列大小
        executor.setQueueCapacity(100000);
        // 配置线程池中线程的名称前缀
        executor.setThreadNamePrefix("dbfg-data-loader-");
        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        // CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        return executor;
    }

    @Bean("mapServerExecutor")
    public TaskExecutor mapServerExecutor() {
//    logger.info("Initial data loader executor pools");
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 配置核心线程数
        executor.setCorePoolSize(10);
        // 配置最大线程数
        executor.setMaxPoolSize(30);
        // 配置队列大小
        executor.setQueueCapacity(100000);
        // 配置线程池中线程的名称前缀
        executor.setThreadNamePrefix("dbfg-map-server-");
        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        // CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        return executor;
    }

}
